To the right is the structure of the disaccharide cellobiose,
which is produced in the enzymatic hydrolysis of cellulose.
Identify the following structural components of cellobiose. (In
each case, check all that apply)
Homework Answers
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To the right is the structure of the disaccharide cellobiose,
which is produced in the enzymatic...
3. a) Cellobiose is a disaccharide with two glucopyranose rings connected with a B1-4 linkage. Based...
3. a) Cellobiose is a disaccharide with two glucopyranose rings connected with a B1-4 linkage. Based on this information, draw cellobiose at right: b) This linkage is similar to which polysaccharide? c) Give a balanced reaction for the hydrolysis of cellobiose. Draw all structures: 4. What type of linkage is in each disaccharide below? Give the number of the each carbon linked in the glycosidic bond, and the a or ß chirality for each anomeric carbon (e.g., a1-4) НО. А...
Later Consider the molecular structure of a disaccharide. Identify the type of glycosidic linkage in the...
Later Consider the molecular structure of a disaccharide. Identify the type of glycosidic linkage in the disaccharide. OH OBI — OH HT V/ OBA AVEL VH OH HA o1ОН H OHH OH Label the structures to show the monosaccharide units produced by hydrolysis of the disaccharide. .. Answer Bank OH CH, OH 42. TV ads A start-up company is about to market a new computer printer. It decides to gamble by running commercials during the Super Bowl. The company hopes...
2. Referring to the structure at the right, answer/do the following: CH2OH a. Label each ring...
2. Referring to the structure at the right, answer/do the following: CH2OH a. Label each ring as locked (L) or unlocked. (U) OH O b. Circle the glycoside linkage. OH C. What type of glycoside linkage (e.g., a-1,2) is it? CH2OH HO OH HO 2MCL d. Explain the significance to humans of the type of glycoside linkage in this disaccharide.Why does it matter to some humans who consume sobi-C this sugar? Hbonvib no tiowall OH OH What is the name...
Chapters 21 and 22: 1. Consider the structure shown on the right and answer the following questio...
Chapters 21 and 22: 1. Consider the structure shown on the right and answer the following questions about it (ill in blanks or cirele proper choice) (4 a. Its molecular formula is G ,H( )0( , and so it fits the CHOH , general formula for a carbohydrate, which is b. Specifically, this structure is (a D/ an L) (aldo/keto) (pent/hex) (aselose) c. Will it be optically active? d. If the top carbon was converted to a CH,OH, would it...
#13 c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube...
#13
c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube gave a positive Benedict's test? #24 #3 test tube light green 13. The purpose of the acid and water bath was to hydrolyze the glycosidic bonds in the disaccharide. Give an equation for the acid-catalyzed hydrolysis of sucrose. Draw the Haworth Formulas and give the name of the monosaccharides produced from hydrolysis. CH OH 0 H H OH H НО H H OH o...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their biological function is determined by their 3 dimensional shape and the functional groups present in the active site. (a) What are the main mechanisms by which an enzyme increase the rate of a reaction? (b) What is a cofactor in an enzyme mediated reaction? (c) Give the name of a cofactor (structure if possible) and indicate the type of reaction that it facilitates. 3....
1p Question 62 Which functional structural proteins will be produced by the following operon genotype when...
1p Question 62 Which functional structural proteins will be produced by the following operon genotype when substance Z is absent? Select all that apply. testR-testP+ testO+ testA+ testB-testC+ testo testP testc testB nothing testa 1 pts 1 pts Question 63 Which functional structural proteins will be produced by the same operon genotype as the last question when substance Z is present? Select all that apply. testR-testP+test+testA+ testB-testC+ testP testC nothing testa testo testB 2 nts List which functional structural proteins...
3. Given the chemical information below, determine the structure of the saccharide i. It is a non-reducing sugar, a...
3. Given the chemical information below, determine the structure of the saccharide i. It is a non-reducing sugar, and does not undergo mutarotation. ii. Upon acidic hydrolysis, one mole each of (D)-mannose, (L)-galactose, (D)-xylose, and (D) threitol (the alditol formed from threose) are produced. iii. Upon exhaustive methylation with dimethylsulfate and hydroxide, followed by acidic hydrolysis, 2,4-di-O-methyl-(D)-mannose, 2,3,4,6-tetra-O-methyl-(L)-galactose, 2,3,4-tri-o methyl-(D)-xylose, and 1,2,3-tri-O-methyl-(D)-threitol are formed iv. When all o-glycosidic linkages are enzymatically hydrolyzed, (L)-galactose, (D)-threitol, and a reducing disaccharide are formed...
Which of the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose...
Which of the following interactions can contribute to the intrinsic binding energy during enzymatic catalysis? Choose all that apply. - hydrogen bonding - permanent covalent bonding - electrostatic interactions - van der Waals interactions - nucleophilic attack by serine
Question 5 (1.25 points) Which of the following carbohydrates should be able to be broken down into smaller pieces...
Question 5 (1.25 points) Which of the following carbohydrates should be able to be broken down into smaller pieces in a hydrolysis reaction? (Select all that apply.) Fructose Cellulose Lactose Sucrose Starch Question 6 (1.25 points) The following sugar would exhibit positive tests for which of the following tests? (Select all that apply.) CH,он н H OH ОН но lodine None of the these tests would be positive. Benedict Seliwanoff
3. a) Cellobiose is a disaccharide with two glucopyranose rings connected with a B1-4 linkage. Based on this information, draw cellobiose at right: b) This linkage is similar to which polysaccharide? c) Give a balanced reaction for the hydrolysis of cellobiose. Draw all structures: 4. What type of linkage is in each disaccharide below? Give the number of the each carbon linked in the glycosidic bond, and the a or ß chirality for each anomeric carbon (e.g., a1-4) НО. А...
Later Consider the molecular structure of a disaccharide. Identify the type of glycosidic linkage in the disaccharide. OH OBI — OH HT V/ OBA AVEL VH OH HA o1ОН H OHH OH Label the structures to show the monosaccharide units produced by hydrolysis of the disaccharide. .. Answer Bank OH CH, OH 42. TV ads A start-up company is about to market a new computer printer. It decides to gamble by running commercials during the Super Bowl. The company hopes...
2. Referring to the structure at the right, answer/do the following: CH2OH a. Label each ring as locked (L) or unlocked. (U) OH O b. Circle the glycoside linkage. OH C. What type of glycoside linkage (e.g., a-1,2) is it? CH2OH HO OH HO 2MCL d. Explain the significance to humans of the type of glycoside linkage in this disaccharide.Why does it matter to some humans who consume sobi-C this sugar? Hbonvib no tiowall OH OH What is the name...
Chapters 21 and 22: 1. Consider the structure shown on the right and answer the following questions about it (ill in blanks or cirele proper choice) (4 a. Its molecular formula is G ,H( )0( , and so it fits the CHOH , general formula for a carbohydrate, which is b. Specifically, this structure is (a D/ an L) (aldo/keto) (pent/hex) (aselose) c. Will it be optically active? d. If the top carbon was converted to a CH,OH, would it...
#13
c. The 'no acid' test tube (on the right): Slightly opaque 2. Which test tube gave a positive Benedict's test? #24 #3 test tube light green 13. The purpose of the acid and water bath was to hydrolyze the glycosidic bonds in the disaccharide. Give an equation for the acid-catalyzed hydrolysis of sucrose. Draw the Haworth Formulas and give the name of the monosaccharides produced from hydrolysis. CH OH 0 H H OH H НО H H OH o...
2. Enzymes are important biological molecules and they act as catalysts for specific chemical reactions. Their biological function is determined by their 3 dimensional shape and the functional groups present in the active site. (a) What are the main mechanisms by which an enzyme increase the rate of a reaction? (b) What is a cofactor in an enzyme mediated reaction? (c) Give the name of a cofactor (structure if possible) and indicate the type of reaction that it facilitates. 3....
1p Question 62 Which functional structural proteins will be produced by the following operon genotype when substance Z is absent? Select all that apply. testR-testP+ testO+ testA+ testB-testC+ testo testP testc testB nothing testa 1 pts 1 pts Question 63 Which functional structural proteins will be produced by the same operon genotype as the last question when substance Z is present? Select all that apply. testR-testP+test+testA+ testB-testC+ testP testC nothing testa testo testB 2 nts List which functional structural proteins...
3. Given the chemical information below, determine the structure of the saccharide i. It is a non-reducing sugar, and does not undergo mutarotation. ii. Upon acidic hydrolysis, one mole each of (D)-mannose, (L)-galactose, (D)-xylose, and (D) threitol (the alditol formed from threose) are produced. iii. Upon exhaustive methylation with dimethylsulfate and hydroxide, followed by acidic hydrolysis, 2,4-di-O-methyl-(D)-mannose, 2,3,4,6-tetra-O-methyl-(L)-galactose, 2,3,4-tri-o methyl-(D)-xylose, and 1,2,3-tri-O-methyl-(D)-threitol are formed iv. When all o-glycosidic linkages are enzymatically hydrolyzed, (L)-galactose, (D)-threitol, and a reducing disaccharide are formed...
Question 5 (1.25 points) Which of the following carbohydrates should be able to be broken down into smaller pieces in a hydrolysis reaction? (Select all that apply.) Fructose Cellulose Lactose Sucrose Starch Question 6 (1.25 points) The following sugar would exhibit positive tests for which of the following tests? (Select all that apply.) CH,он н H OH ОН но lodine None of the these tests would be positive. Benedict Seliwanoff
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